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    CVE-2023-4966

    Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA  virtual server.

    Published:Oct 10, 2023
    Last Modified:Oct 24, 2025
    EPS:Oct 10, 2023
    EPSS Score:0.94348
    CVSS Score:9.4

    CISA Notification

    Description

    Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA  virtual server.

    Required Action:

    Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Nov 8, 2023
    1038 days ago
    Alert Date
    Oct 18, 2023
    1059 days ago

    Affected Products

    Vendor
    Citrix
    Product
    Netscaler Application Delivery Controller
    Vendor
    Citrix
    Product
    Netscaler Gateway

    Exploits

    https://github.com/0xKayala/CVE-2023-4966https://github.com/akshthejo/CVE-2023-4966-exploithttps://github.com/byte4RR4Y/CVE-2023-4966https://github.com/certat/citrix-logcheckerhttps://github.com/Chocapikk/CVE-2023-4966https://github.com/dinosn/citrix_cve-2023-4966https://github.com/IceBreakerCode/CVE-2023-4966https://github.com/jmussmann/cve-2023-4966-iocshttps://github.com/LucasOneZ/CVE-2023-4966https://github.com/mlynchcogent/CVE-2023-4966-POChttps://github.com/morganwdavis/overreadhttps://github.com/RevoltSecurities/CVE-2023-4966https://github.com/s-bt/CVE-2023-4966https://github.com/senpaisamp/Netscaler-CVE-2023-4966-POChttps://github.com/vignesh-hp/LockBit-Ransomware-Analysis

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High